blob: 30a897d0633368bf891769c86a79d723536f30da [file] [log] [blame]
wdenkcbd8a352004-02-24 02:00:03 +00001/*
2 * NFS support driver - based on etherboot and U-BOOT's tftp.c
3 *
4 * Masami Komiya <mkomiya@sonare.it> 2004
5 *
6 */
7
8/* NOTE: the NFS code is heavily inspired by the NetBSD netboot code (read:
9 * large portions are copied verbatim) as distributed in OSKit 0.97. A few
10 * changes were necessary to adapt the code to Etherboot and to fix several
11 * inconsistencies. Also the RPC message preparation is done "by hand" to
12 * avoid adding netsprintf() which I find hard to understand and use. */
13
14/* NOTE 2: Etherboot does not care about things beyond the kernel image, so
15 * it loads the kernel image off the boot server (ARP_SERVER) and does not
16 * access the client root disk (root-path in dhcpd.conf), which would use
17 * ARP_ROOTSERVER. The root disk is something the operating system we are
18 * about to load needs to use. This is different from the OSKit 0.97 logic. */
19
20/* NOTE 3: Symlink handling introduced by Anselm M Hoffmeister, 2003-July-14
21 * If a symlink is encountered, it is followed as far as possible (recursion
22 * possible, maximum 16 steps). There is no clearing of ".."'s inside the
23 * path, so please DON'T DO THAT. thx. */
24
25#include <common.h>
26#include <command.h>
27#include <net.h>
28#include <malloc.h>
29#include "nfs.h"
30#include "bootp.h"
31
32/*#define NFS_DEBUG*/
33
Jon Loeliger643d1ab2007-07-09 17:45:14 -050034#if (defined(CONFIG_CMD_NET) \
35 && defined(CONFIG_CMD_NFS)
wdenkcbd8a352004-02-24 02:00:03 +000036
37#define HASHES_PER_LINE 65 /* Number of "loading" hashes per line */
wdenke94d2cd2004-06-30 22:59:18 +000038#define NFS_TIMEOUT 60
wdenkcbd8a352004-02-24 02:00:03 +000039
40static int fs_mounted = 0;
wdenkc3f9d492004-03-14 00:59:59 +000041static unsigned long rpc_id = 0;
wdenkcbd8a352004-02-24 02:00:03 +000042static int nfs_offset = -1;
43static int nfs_len;
44
45static char dirfh[NFS_FHSIZE]; /* file handle of directory */
46static char filefh[NFS_FHSIZE]; /* file handle of kernel image */
47
Wolfgang Denk23a7a322005-08-06 01:11:12 +020048static int NfsDownloadState;
wdenkcbd8a352004-02-24 02:00:03 +000049static IPaddr_t NfsServerIP;
50static int NfsSrvMountPort;
51static int NfsSrvNfsPort;
52static int NfsOurPort;
53static int NfsTimeoutCount;
54static int NfsState;
55#define STATE_PRCLOOKUP_PROG_MOUNT_REQ 1
56#define STATE_PRCLOOKUP_PROG_NFS_REQ 2
57#define STATE_MOUNT_REQ 3
58#define STATE_UMOUNT_REQ 4
59#define STATE_LOOKUP_REQ 5
60#define STATE_READ_REQ 6
61#define STATE_READLINK_REQ 7
62
63static char default_filename[64];
64static char *nfs_filename;
65static char *nfs_path;
66static char nfs_path_buff[2048];
67
Wolfgang Denk23a7a322005-08-06 01:11:12 +020068static __inline__ int
wdenkcbd8a352004-02-24 02:00:03 +000069store_block (uchar * src, unsigned offset, unsigned len)
70{
wdenka084f7d2004-02-24 22:33:21 +000071 ulong newsize = offset + len;
wdenkcbd8a352004-02-24 02:00:03 +000072#ifdef CFG_DIRECT_FLASH_NFS
73 int i, rc = 0;
74
75 for (i=0; i<CFG_MAX_FLASH_BANKS; i++) {
76 /* start address in flash? */
77 if (load_addr + offset >= flash_info[i].start[0]) {
78 rc = 1;
79 break;
80 }
81 }
82
83 if (rc) { /* Flash is destination for this packet */
84 rc = flash_write ((uchar *)src, (ulong)(load_addr+offset), len);
85 if (rc) {
86 flash_perror (rc);
Wolfgang Denk23a7a322005-08-06 01:11:12 +020087 return -1;
wdenkcbd8a352004-02-24 02:00:03 +000088 }
89 } else
90#endif /* CFG_DIRECT_FLASH_NFS */
wdenkcbd8a352004-02-24 02:00:03 +000091 {
92 (void)memcpy ((void *)(load_addr + offset), src, len);
93 }
wdenka084f7d2004-02-24 22:33:21 +000094
95 if (NetBootFileXferSize < (offset+len))
96 NetBootFileXferSize = newsize;
Wolfgang Denk23a7a322005-08-06 01:11:12 +020097 return 0;
wdenkcbd8a352004-02-24 02:00:03 +000098}
99
100static char*
101basename (char *path)
102{
103 char *fname;
104
105 fname = path + strlen(path) - 1;
106 while (fname >= path) {
107 if (*fname == '/') {
108 fname++;
109 break;
110 }
111 fname--;
112 }
113 return fname;
114}
115
116static char*
117dirname (char *path)
118{
119 char *fname;
120
121 fname = basename (path);
122 --fname;
123 *fname = '\0';
124 return path;
125}
126
127/**************************************************************************
wdenkcbd8a352004-02-24 02:00:03 +0000128RPC_ADD_CREDENTIALS - Add RPC authentication/verifier entries
129**************************************************************************/
130static long *rpc_add_credentials (long *p)
131{
132 int hl;
133 int hostnamelen;
134 char hostname[256];
135
136 strcpy (hostname, "");
137 hostnamelen=strlen (hostname);
138
139 /* Here's the executive summary on authentication requirements of the
140 * various NFS server implementations: Linux accepts both AUTH_NONE
141 * and AUTH_UNIX authentication (also accepts an empty hostname field
142 * in the AUTH_UNIX scheme). *BSD refuses AUTH_NONE, but accepts
143 * AUTH_UNIX (also accepts an empty hostname field in the AUTH_UNIX
144 * scheme). To be safe, use AUTH_UNIX and pass the hostname if we have
145 * it (if the BOOTP/DHCP reply didn't give one, just use an empty
146 * hostname). */
147
148 hl = (hostnamelen + 3) & ~3;
149
150 /* Provide an AUTH_UNIX credential. */
151 *p++ = htonl(1); /* AUTH_UNIX */
152 *p++ = htonl(hl+20); /* auth length */
153 *p++ = htonl(0); /* stamp */
154 *p++ = htonl(hostnamelen); /* hostname string */
155 if (hostnamelen & 3) {
156 *(p + hostnamelen / 4) = 0; /* add zero padding */
157 }
158 memcpy (p, hostname, hostnamelen);
159 p += hl / 4;
160 *p++ = 0; /* uid */
161 *p++ = 0; /* gid */
162 *p++ = 0; /* auxiliary gid list */
163
164 /* Provide an AUTH_NONE verifier. */
165 *p++ = 0; /* AUTH_NONE */
166 *p++ = 0; /* auth length */
167
168 return p;
169}
170
171/**************************************************************************
172RPC_LOOKUP - Lookup RPC Port numbers
173**************************************************************************/
174static void
175rpc_req (int rpc_prog, int rpc_proc, uint32_t *data, int datalen)
176{
177 struct rpc_t pkt;
178 unsigned long id;
179 uint32_t *p;
180 int pktlen;
181 int sport;
182
wdenkc3f9d492004-03-14 00:59:59 +0000183 id = ++rpc_id;
wdenkcbd8a352004-02-24 02:00:03 +0000184 pkt.u.call.id = htonl(id);
185 pkt.u.call.type = htonl(MSG_CALL);
186 pkt.u.call.rpcvers = htonl(2); /* use RPC version 2 */
187 pkt.u.call.prog = htonl(rpc_prog);
188 pkt.u.call.vers = htonl(2); /* portmapper is version 2 */
189 pkt.u.call.proc = htonl(rpc_proc);
190 p = (uint32_t *)&(pkt.u.call.data);
191
192 if (datalen)
193 memcpy ((char *)p, (char *)data, datalen*sizeof(uint32_t));
194
195 pktlen = (char *)p + datalen*sizeof(uint32_t) - (char *)&pkt;
196
wdenka3d991b2004-04-15 21:48:45 +0000197 memcpy ((char *)NetTxPacket + NetEthHdrSize() + IP_HDR_SIZE, (char *)&pkt, pktlen);
wdenkcbd8a352004-02-24 02:00:03 +0000198
199 if (rpc_prog == PROG_PORTMAP)
200 sport = SUNRPC_PORT;
201 else if (rpc_prog == PROG_MOUNT)
202 sport = NfsSrvMountPort;
203 else
204 sport = NfsSrvNfsPort;
205
206 NetSendUDPPacket (NetServerEther, NfsServerIP, sport, NfsOurPort, pktlen);
207}
208
209/**************************************************************************
210RPC_LOOKUP - Lookup RPC Port numbers
211**************************************************************************/
212static void
213rpc_lookup_req (int prog, int ver)
214{
215 uint32_t data[16];
216
217 data[0] = 0; data[1] = 0; /* auth credential */
218 data[2] = 0; data[3] = 0; /* auth verifier */
219 data[4] = htonl(prog);
220 data[5] = htonl(ver);
221 data[6] = htonl(17); /* IP_UDP */
222 data[7] = 0;
223
224 rpc_req (PROG_PORTMAP, PORTMAP_GETPORT, data, 8);
225}
226
227/**************************************************************************
228NFS_MOUNT - Mount an NFS Filesystem
229**************************************************************************/
230static void
231nfs_mount_req (char *path)
232{
233 uint32_t data[1024];
234 uint32_t *p;
235 int len;
236 int pathlen;
237
238 pathlen = strlen (path);
239
240 p = &(data[0]);
241 p = (uint32_t *)rpc_add_credentials((long *)p);
242
243 *p++ = htonl(pathlen);
244 if (pathlen & 3) *(p + pathlen / 4) = 0;
245 memcpy (p, path, pathlen);
246 p += (pathlen + 3) / 4;
247
248 len = (uint32_t *)p - (uint32_t *)&(data[0]);
249
250 rpc_req (PROG_MOUNT, MOUNT_ADDENTRY, data, len);
251}
252
253/**************************************************************************
254NFS_UMOUNTALL - Unmount all our NFS Filesystems on the Server
255**************************************************************************/
256static void
257nfs_umountall_req (void)
258{
259 uint32_t data[1024];
260 uint32_t *p;
261 int len;
262
263 if ((NfsSrvMountPort == -1) || (!fs_mounted)) {
264 /* Nothing mounted, nothing to umount */
265 return;
266 }
267
268 p = &(data[0]);
269 p = (uint32_t *)rpc_add_credentials ((long *)p);
270
271 len = (uint32_t *)p - (uint32_t *)&(data[0]);
272
273 rpc_req (PROG_MOUNT, MOUNT_UMOUNTALL, data, len);
274}
275
276/***************************************************************************
277 * NFS_READLINK (AH 2003-07-14)
278 * This procedure is called when read of the first block fails -
279 * this probably happens when it's a directory or a symlink
280 * In case of successful readlink(), the dirname is manipulated,
281 * so that inside the nfs() function a recursion can be done.
282 **************************************************************************/
283static void
284nfs_readlink_req (void)
285{
286 uint32_t data[1024];
287 uint32_t *p;
288 int len;
289
290 p = &(data[0]);
291 p = (uint32_t *)rpc_add_credentials ((long *)p);
292
293 memcpy (p, filefh, NFS_FHSIZE);
294 p += (NFS_FHSIZE / 4);
295
296 len = (uint32_t *)p - (uint32_t *)&(data[0]);
297
298 rpc_req (PROG_NFS, NFS_READLINK, data, len);
299}
300
301/**************************************************************************
302NFS_LOOKUP - Lookup Pathname
303**************************************************************************/
304static void
305nfs_lookup_req (char *fname)
306{
307 uint32_t data[1024];
308 uint32_t *p;
309 int len;
310 int fnamelen;
311
312 fnamelen = strlen (fname);
313
314 p = &(data[0]);
315 p = (uint32_t *)rpc_add_credentials ((long *)p);
316
317 memcpy (p, dirfh, NFS_FHSIZE);
318 p += (NFS_FHSIZE / 4);
319 *p++ = htonl(fnamelen);
320 if (fnamelen & 3) *(p + fnamelen / 4) = 0;
321 memcpy (p, fname, fnamelen);
322 p += (fnamelen + 3) / 4;
323
324 len = (uint32_t *)p - (uint32_t *)&(data[0]);
325
326 rpc_req (PROG_NFS, NFS_LOOKUP, data, len);
327}
328
329/**************************************************************************
330NFS_READ - Read File on NFS Server
331**************************************************************************/
332static void
333nfs_read_req (int offset, int readlen)
334{
335 uint32_t data[1024];
336 uint32_t *p;
337 int len;
338
339 p = &(data[0]);
340 p = (uint32_t *)rpc_add_credentials ((long *)p);
341
342 memcpy (p, filefh, NFS_FHSIZE);
343 p += (NFS_FHSIZE / 4);
344 *p++ = htonl(offset);
345 *p++ = htonl(readlen);
346 *p++ = 0;
347
348 len = (uint32_t *)p - (uint32_t *)&(data[0]);
349
350 rpc_req (PROG_NFS, NFS_READ, data, len);
351}
352
353/**************************************************************************
354RPC request dispatcher
355**************************************************************************/
356
357static void
358NfsSend (void)
359{
360#ifdef NFS_DEBUG
361 printf ("%s\n", __FUNCTION__);
362#endif
363
364 switch (NfsState) {
365 case STATE_PRCLOOKUP_PROG_MOUNT_REQ:
366 rpc_lookup_req (PROG_MOUNT, 1);
367 break;
368 case STATE_PRCLOOKUP_PROG_NFS_REQ:
369 rpc_lookup_req (PROG_NFS, 2);
370 break;
371 case STATE_MOUNT_REQ:
372 nfs_mount_req (nfs_path);
373 break;
374 case STATE_UMOUNT_REQ:
375 nfs_umountall_req ();
376 break;
377 case STATE_LOOKUP_REQ:
378 nfs_lookup_req (nfs_filename);
379 break;
380 case STATE_READ_REQ:
381 nfs_read_req (nfs_offset, nfs_len);
382 break;
383 case STATE_READLINK_REQ:
384 nfs_readlink_req ();
385 break;
386 }
387}
388
389/**************************************************************************
390Handlers for the reply from server
391**************************************************************************/
392
393static int
394rpc_lookup_reply (int prog, uchar *pkt, unsigned len)
395{
396 struct rpc_t rpc_pkt;
397
398 memcpy ((unsigned char *)&rpc_pkt, pkt, len);
399
400#ifdef NFS_DEBUG
401 printf ("%s\n", __FUNCTION__);
402#endif
403
wdenkc3f9d492004-03-14 00:59:59 +0000404 if (ntohl(rpc_pkt.u.reply.id) != rpc_id)
405 return -1;
406
wdenkcbd8a352004-02-24 02:00:03 +0000407 if (rpc_pkt.u.reply.rstatus ||
408 rpc_pkt.u.reply.verifier ||
409 rpc_pkt.u.reply.astatus ||
410 rpc_pkt.u.reply.astatus) {
wdenkc3f9d492004-03-14 00:59:59 +0000411 return -1;
wdenkcbd8a352004-02-24 02:00:03 +0000412 }
413
414 switch (prog) {
415 case PROG_MOUNT:
416 NfsSrvMountPort = ntohl(rpc_pkt.u.reply.data[0]);
417 break;
418 case PROG_NFS:
419 NfsSrvNfsPort = ntohl(rpc_pkt.u.reply.data[0]);
420 break;
421 }
422
423 return 0;
424}
425
426static int
427nfs_mount_reply (uchar *pkt, unsigned len)
428{
429 struct rpc_t rpc_pkt;
430
431#ifdef NFS_DEBUG
432 printf ("%s\n", __FUNCTION__);
433#endif
434
435 memcpy ((unsigned char *)&rpc_pkt, pkt, len);
436
wdenkc3f9d492004-03-14 00:59:59 +0000437 if (ntohl(rpc_pkt.u.reply.id) != rpc_id)
438 return -1;
439
wdenkcbd8a352004-02-24 02:00:03 +0000440 if (rpc_pkt.u.reply.rstatus ||
441 rpc_pkt.u.reply.verifier ||
442 rpc_pkt.u.reply.astatus ||
443 rpc_pkt.u.reply.data[0]) {
444 return -1;
445 }
446
447 fs_mounted = 1;
448 memcpy (dirfh, rpc_pkt.u.reply.data + 1, NFS_FHSIZE);
449
450 return 0;
451}
452
453static int
454nfs_umountall_reply (uchar *pkt, unsigned len)
455{
456 struct rpc_t rpc_pkt;
457
458#ifdef NFS_DEBUG
459 printf ("%s\n", __FUNCTION__);
460#endif
461
462 memcpy ((unsigned char *)&rpc_pkt, pkt, len);
463
wdenkc3f9d492004-03-14 00:59:59 +0000464 if (ntohl(rpc_pkt.u.reply.id) != rpc_id)
465 return -1;
466
wdenkcbd8a352004-02-24 02:00:03 +0000467 if (rpc_pkt.u.reply.rstatus ||
468 rpc_pkt.u.reply.verifier ||
469 rpc_pkt.u.reply.astatus) {
470 return -1;
471 }
472
473 fs_mounted = 0;
474 memset (dirfh, 0, sizeof(dirfh));
475
476 return 0;
477}
478
479static int
480nfs_lookup_reply (uchar *pkt, unsigned len)
481{
482 struct rpc_t rpc_pkt;
483
484#ifdef NFS_DEBUG
485 printf ("%s\n", __FUNCTION__);
486#endif
487
488 memcpy ((unsigned char *)&rpc_pkt, pkt, len);
489
wdenkc3f9d492004-03-14 00:59:59 +0000490 if (ntohl(rpc_pkt.u.reply.id) != rpc_id)
491 return -1;
492
wdenkcbd8a352004-02-24 02:00:03 +0000493 if (rpc_pkt.u.reply.rstatus ||
494 rpc_pkt.u.reply.verifier ||
495 rpc_pkt.u.reply.astatus ||
496 rpc_pkt.u.reply.data[0]) {
497 return -1;
498 }
499
500 memcpy (filefh, rpc_pkt.u.reply.data + 1, NFS_FHSIZE);
501
502 return 0;
503}
504
505static int
506nfs_readlink_reply (uchar *pkt, unsigned len)
507{
508 struct rpc_t rpc_pkt;
509 int rlen;
510
511#ifdef NFS_DEBUG
512 printf ("%s\n", __FUNCTION__);
513#endif
514
515 memcpy ((unsigned char *)&rpc_pkt, pkt, len);
516
wdenkc3f9d492004-03-14 00:59:59 +0000517 if (ntohl(rpc_pkt.u.reply.id) != rpc_id)
518 return -1;
519
wdenkcbd8a352004-02-24 02:00:03 +0000520 if (rpc_pkt.u.reply.rstatus ||
521 rpc_pkt.u.reply.verifier ||
522 rpc_pkt.u.reply.astatus ||
523 rpc_pkt.u.reply.data[0]) {
524 return -1;
525 }
526
527 rlen = ntohl (rpc_pkt.u.reply.data[1]); /* new path length */
528
529 if (*((char *)&(rpc_pkt.u.reply.data[2])) != '/') {
530 int pathlen;
531 strcat (nfs_path, "/");
532 pathlen = strlen(nfs_path);
533 memcpy (nfs_path+pathlen, (uchar *)&(rpc_pkt.u.reply.data[2]), rlen);
534 nfs_path[pathlen+rlen+1] = 0;
535 } else {
536 memcpy (nfs_path, (uchar *)&(rpc_pkt.u.reply.data[2]), rlen);
537 nfs_path[rlen] = 0;
538 }
539 return 0;
540}
541
542static int
543nfs_read_reply (uchar *pkt, unsigned len)
544{
545 struct rpc_t rpc_pkt;
546 int rlen;
547
548#ifdef NFS_DEBUG_nop
549 printf ("%s\n", __FUNCTION__);
550#endif
551
wdenk11dadd52004-02-27 00:07:27 +0000552 memcpy ((uchar *)&rpc_pkt, pkt, sizeof(rpc_pkt.u.reply));
wdenkcbd8a352004-02-24 02:00:03 +0000553
wdenkc3f9d492004-03-14 00:59:59 +0000554 if (ntohl(rpc_pkt.u.reply.id) != rpc_id)
555 return -1;
556
wdenkcbd8a352004-02-24 02:00:03 +0000557 if (rpc_pkt.u.reply.rstatus ||
558 rpc_pkt.u.reply.verifier ||
559 rpc_pkt.u.reply.astatus ||
560 rpc_pkt.u.reply.data[0]) {
561 if (rpc_pkt.u.reply.rstatus) {
562 return -9999;
563 }
564 if (rpc_pkt.u.reply.astatus) {
565 return -9999;
566 }
567 return -ntohl(rpc_pkt.u.reply.data[0]);;
568 }
569
570 if ((nfs_offset!=0) && !((nfs_offset) % (NFS_READ_SIZE/2*10*HASHES_PER_LINE))) {
571 puts ("\n\t ");
572 }
573 if (!(nfs_offset % ((NFS_READ_SIZE/2)*10))) {
574 putc ('#');
575 }
576
577 rlen = ntohl(rpc_pkt.u.reply.data[18]);
Wolfgang Denk23a7a322005-08-06 01:11:12 +0200578 if ( store_block ((uchar *)pkt+sizeof(rpc_pkt.u.reply), nfs_offset, rlen) )
579 return -9999;
wdenkcbd8a352004-02-24 02:00:03 +0000580
581 return rlen;
582}
583
584/**************************************************************************
585Interfaces of U-BOOT
586**************************************************************************/
587
588static void
wdenka5725fa2004-09-28 21:51:42 +0000589NfsTimeout (void)
590{
591 puts ("Timeout\n");
592 NetState = NETLOOP_FAIL;
593 return;
594}
595
596static void
wdenkcbd8a352004-02-24 02:00:03 +0000597NfsHandler (uchar *pkt, unsigned dest, unsigned src, unsigned len)
598{
599 int rlen;
600
601#ifdef NFS_DEBUG
602 printf ("%s\n", __FUNCTION__);
603#endif
604
605 if (dest != NfsOurPort) return;
606
607 switch (NfsState) {
608 case STATE_PRCLOOKUP_PROG_MOUNT_REQ:
609 rpc_lookup_reply (PROG_MOUNT, pkt, len);
610 NfsState = STATE_PRCLOOKUP_PROG_NFS_REQ;
611 NfsSend ();
612 break;
613
614 case STATE_PRCLOOKUP_PROG_NFS_REQ:
615 rpc_lookup_reply (PROG_NFS, pkt, len);
616 NfsState = STATE_MOUNT_REQ;
617 NfsSend ();
618 break;
619
620 case STATE_MOUNT_REQ:
621 if (nfs_mount_reply(pkt, len)) {
622 puts ("*** ERROR: Cannot mount\n");
623 /* just to be sure... */
624 NfsState = STATE_UMOUNT_REQ;
625 NfsSend ();
626 } else {
627 NfsState = STATE_LOOKUP_REQ;
628 NfsSend ();
629 }
630 break;
631
632 case STATE_UMOUNT_REQ:
633 if (nfs_umountall_reply(pkt, len)) {
634 puts ("*** ERROR: Cannot umount\n");
635 NetState = NETLOOP_FAIL;
636 } else {
wdenka084f7d2004-02-24 22:33:21 +0000637 puts ("\ndone\n");
Wolfgang Denk23a7a322005-08-06 01:11:12 +0200638 NetState = NfsDownloadState;
wdenkcbd8a352004-02-24 02:00:03 +0000639 }
640 break;
641
642 case STATE_LOOKUP_REQ:
643 if (nfs_lookup_reply(pkt, len)) {
644 puts ("*** ERROR: File lookup fail\n");
645 NfsState = STATE_UMOUNT_REQ;
646 NfsSend ();
647 } else {
648 NfsState = STATE_READ_REQ;
649 nfs_offset = 0;
650 nfs_len = NFS_READ_SIZE;
651 NfsSend ();
652 }
653 break;
654
655 case STATE_READLINK_REQ:
656 if (nfs_readlink_reply(pkt, len)) {
657 puts ("*** ERROR: Symlink fail\n");
658 NfsState = STATE_UMOUNT_REQ;
659 NfsSend ();
660 } else {
661#ifdef NFS_DEBUG
662 printf ("Symlink --> %s\n", nfs_path);
663#endif
664 nfs_filename = basename (nfs_path);
665 nfs_path = dirname (nfs_path);
666
667 NfsState = STATE_MOUNT_REQ;
668 NfsSend ();
669 }
670 break;
671
672 case STATE_READ_REQ:
673 rlen = nfs_read_reply (pkt, len);
wdenka5725fa2004-09-28 21:51:42 +0000674 NetSetTimeout (NFS_TIMEOUT * CFG_HZ, NfsTimeout);
wdenkcbd8a352004-02-24 02:00:03 +0000675 if (rlen > 0) {
676 nfs_offset += rlen;
677 NfsSend ();
678 }
679 else if ((rlen == -NFSERR_ISDIR)||(rlen == -NFSERR_INVAL)) {
680 /* symbolic link */
681 NfsState = STATE_READLINK_REQ;
682 NfsSend ();
683 } else {
Wolfgang Denk23a7a322005-08-06 01:11:12 +0200684 if ( ! rlen ) NfsDownloadState = NETLOOP_SUCCESS;
wdenkcbd8a352004-02-24 02:00:03 +0000685 NfsState = STATE_UMOUNT_REQ;
686 NfsSend ();
687 }
688 break;
689 }
690}
691
wdenkcbd8a352004-02-24 02:00:03 +0000692
693void
694NfsStart (void)
695{
696#ifdef NFS_DEBUG
697 printf ("%s\n", __FUNCTION__);
698#endif
Wolfgang Denk23a7a322005-08-06 01:11:12 +0200699 NfsDownloadState = NETLOOP_FAIL;
wdenkcbd8a352004-02-24 02:00:03 +0000700
701 NfsServerIP = NetServerIP;
702 nfs_path = (char *)nfs_path_buff;
703
704 if (nfs_path == NULL) {
705 NetState = NETLOOP_FAIL;
706 puts ("*** ERROR: Fail allocate memory\n");
707 return;
708 }
709
710 if (BootFile[0] == '\0') {
wdenkcbd8a352004-02-24 02:00:03 +0000711 sprintf (default_filename, "/nfsroot/%02lX%02lX%02lX%02lX.img",
Wolfgang Denkc43352c2005-08-04 01:09:44 +0200712 NetOurIP & 0xFF,
713 (NetOurIP >> 8) & 0xFF,
714 (NetOurIP >> 16) & 0xFF,
715 (NetOurIP >> 24) & 0xFF );
wdenkcbd8a352004-02-24 02:00:03 +0000716 strcpy (nfs_path, default_filename);
717
718 printf ("*** Warning: no boot file name; using '%s'\n",
719 nfs_path);
720 } else {
721 char *p=BootFile;
722
723 p = strchr (p, ':');
724
725 if (p != NULL) {
726 NfsServerIP = string_to_ip (BootFile);
727 ++p;
728 strcpy (nfs_path, p);
729 } else {
730 strcpy (nfs_path, BootFile);
731 }
732 }
733
734 nfs_filename = basename (nfs_path);
735 nfs_path = dirname (nfs_path);
736
737#if defined(CONFIG_NET_MULTI)
738 printf ("Using %s device\n", eth_get_name());
739#endif
740
741 puts ("File transfer via NFS from server "); print_IPaddr (NfsServerIP);
742 puts ("; our IP address is "); print_IPaddr (NetOurIP);
743
744 /* Check if we need to send across this subnet */
745 if (NetOurGatewayIP && NetOurSubnetMask) {
746 IPaddr_t OurNet = NetOurIP & NetOurSubnetMask;
747 IPaddr_t ServerNet = NetServerIP & NetOurSubnetMask;
748
749 if (OurNet != ServerNet) {
750 puts ("; sending through gateway ");
751 print_IPaddr (NetOurGatewayIP) ;
752 }
753 }
wdenk4b9206e2004-03-23 22:14:11 +0000754 printf ("\nFilename '%s/%s'.", nfs_path, nfs_filename);
wdenkcbd8a352004-02-24 02:00:03 +0000755
756 if (NetBootFileSize) {
757 printf (" Size is 0x%x Bytes = ", NetBootFileSize<<9);
758 print_size (NetBootFileSize<<9, "");
759 }
wdenk4b9206e2004-03-23 22:14:11 +0000760 printf ("\nLoad address: 0x%lx\n"
761 "Loading: *\b", load_addr);
wdenkcbd8a352004-02-24 02:00:03 +0000762
763 NetSetTimeout (NFS_TIMEOUT * CFG_HZ, NfsTimeout);
764 NetSetHandler (NfsHandler);
765
wdenkcbd8a352004-02-24 02:00:03 +0000766 NfsTimeoutCount = 0;
767 NfsState = STATE_PRCLOOKUP_PROG_MOUNT_REQ;
768
769 /*NfsOurPort = 4096 + (get_ticks() % 3072);*/
770 /*FIX ME !!!*/
771 NfsOurPort = 1000;
772
773 /* zero out server ether in case the server ip has changed */
774 memset (NetServerEther, 0, 6);
775
776 NfsSend ();
777}
778
Jon Loeliger643d1ab2007-07-09 17:45:14 -0500779#endif